Propane | |
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Identifiers | |
CAS number | |
PubChem | |
EC number | 200-827-9 |
KEGG | D05625 |
ChEBI | CHEBI:32879 |
RTECS number | TX2275000 |
SMILES | CCC |
Beilstein Reference | 1730718 |
Gmelin Reference | 25044 |
Properties | |
Molecular formula | C3H8 |
Molar mass | 44.1 g mol-1 |
Appearance | Colorless gas |
Odor | Odorless |
Density | 2.0098 kg/m3 (at 0 °C, 101.3 kPa) |
Melting point | -188 °C, 85.5 K, -306 °F |
Boiling point | |
Solubility in water | 47 mg⋅L−1 (at 0 °C) |
log P | 2.236 |
Vapor pressure | 853.16 kPa (at 21.1 °C (70.0 °F)) |
kH | 15 nmol⋅Pa−1⋅kg−1 |
−40.5 × 10−6 cm3/mol | |
Dipole moment | 0.083 D |
Thermochemistry | |
Std enthalpy of formation ΔfH | −105.2–104.2 kJ⋅mol−1 |
Std enthalpy of combustion ΔcH | −2.2197–2.2187 MJ⋅mol−1 |
Specific heat capacity, C | 73.60 J⋅K−1⋅mol−1 |
Hazards | |
NFPA 704 | |
Explosive limits | 2.37–9.5% |
U.S. Permissible exposure limit (PEL) | TWA 1000 ppm (1800 mg/m3) |
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
Propane is an organic compound with the chemical formula C3H8. It is an alkane with three carbon atoms. It is used in fuels.
It begins to burn very quickly. Its melting temperature is −187.7 °C; its boiling temperature is −42 °C; its density is 1.83 g/l.
Propane is extracted from natural gasoline or from petroleum. view more...